footer {
	/*position: absolute;*/
	/*bottom: 0;*/
	width: 100%;
	height: 60px;
	padding: 5px 0;
	background-color: #4d4d4d;
}

footer .bottom {
	font-size: 15px;
	color: #aaa;
}

#gotop {
	position: fixed;
	right: 0px;
	bottom: 30px;
	z-index: 30;
	width: 56px;
	height: 56px;
	line-height: 56px;
	text-align: center;
	font-size: 20px;
	color: #fff;
	background: #4d4d4d;
	border-radius: 50%;
	box-shadow: 0 3px 5px 0 rgba(0, 0, 0, 0.32), 0 3px 10px 0
		rgba(0, 0, 0, 0.24);
	opacity: 0;
	transition: all .6s;
}